Federal Capital site Canberra sewerage preliminary design [cartographic material] /

Ms. annotations on a section of the parish maps of Canberra and Narrabundah showing Charles Henry Caswell's proposed sewerage scheme for the Australian Federal Capital site on the Molonglo River. Relief shown by contours and spot heights.; Water supply available by gravitation from (a) Cotter, (b) Gudgenby, and (c) Naas Rivers / C.H. Caswell. Minute No. 1809 to NSW Premier's Office from N.S.W. Department of Public Works (Premier's Office file 4338-10 September, 1909).; Also available in an electronic version via the Internet at: http://nla.gov.au/nla.map-rm2768